1 January 2005 Measurement of brain activity by near-infrared light
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We review our most recent results on near-IR studies of human brain activity, which have been evolving in two directions: detection of neuronal signals and measurements of functional hemodynamics. We discuss results obtained so far, describing in detail the techniques we developed for detecting neuronal activity, and presenting results of a study that, as we believe, confirms the feasibility of neuronal signal detection. We review our results on near-IR measurements of cerebral hemodynamics, which are performed simultaneously with functional magnetic resonance imaging (MRI) These results confirm the cerebral origin of hemodynamic signals measured by optical techniques on the surface of the head. We also show how near-IR methods can be used to study the underlying physiology of functional MRI signals.
© (2005) Society of Photo-Optical Instrumentation Engineers (SPIE)
Enrico Gratton, Enrico Gratton, Vladislav Y. Toronov, Vladislav Y. Toronov, Ursula Wolf, Ursula Wolf, Martin Wolf, Martin Wolf, Andrew G. Webb, Andrew G. Webb, } "Measurement of brain activity by near-infrared light," Journal of Biomedical Optics 10(1), 011008 (1 January 2005). https://doi.org/10.1117/1.1854673 . Submission:

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